/Engine/Source/Runtime/Engine/Public/CanvasRendererItem.h
Renders the canvas item. Iterates over each triangle to be rendered and draws it with its own transforms
true if anything rendered
virtual bool Render_GameThread ( const [FCanvas](API\Runtime\Engine\FCanvas) * Canvas, [FCanvasRenderThreadScope](API\Runtime\Engine\FCanvasRenderThreadScope) & RenderScope )